Game Description:You're small, you kick butt, and you're a ninja! Namco's I-Ninja is a comical adventure game that will have you sliding down massive rails, leaping across buildings, scaling walls, floating across great barriers with a "copter sword," and riding roller spheres. You will also use multiple weapons including ninja swords, shuriken, rocket launchers, chain-whips, and blowguns. With your righteous ninja powers you will fight the Ranx Army foot soldiers and their big bosses including a 150-foot giant robot. You-Ninja!

Upgrade sword

Battle arena

If you want unlock the Battle Arena, get every grade, then you should get the Master grade. The Battle Arena will now be open in Robot Beach.

Mow grass

Where there are grass, flowers, mushrooms, other foliage, objects other than crates and barrels, and certain decorative objects, you can cut them down to earn a few extra points towards your main score. This is useful in the certain levels that require a high score to earn the grade.